Home / 856,128.96-1,181,356.56-493,671.96

Finding the Fourth Proportional to 856,128.96, 1,181,356.56 and 493,671.96

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Solution

The fourth proportional to 856,128.96, 1,181,356.56 and 493,671.96 is: 681,208.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,128.96 : 1,181,356.56 = 493,671.96 : x
  2. Step 2: Convert to fraction form
    856,128.96/1,181,356.56 = 493,671.96/x
  3. Step 3: Cross multiply
    856,128.96x = 1,181,356.56 × 493,671.96
  4. Step 4: Simplify right side
    856,128.96x = 583,202,608,434.06
  5. Step 5: Solve for x
    x = 583,202,608,434.06/856,128.96
  6. Step 6: Final answer
    x = 681,208.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.